(19)

(11)

EP 0 440 667 A1

(12)

(43) Date of publication: 14.08.1991 Bulletin 1991/33 (21) Application number: 89909771.0 (22) Date of filing: 30.08.1989

(51) International Patent Classification (IPC):  B64F 1/ 22( . ) (86) International application number: PCT/FI1989/000162 (87) International publication number: WO 1990/002080 (08.03.1990 Gazette 1990/06)

(84) Designated Contracting States: AT BE DE FR GB IT NL SE (30) Priority: 31.08.1988 FI 19880004000 (71) Applicant: TANA-JYRÄ KY SF-40801 Vaajakoski (FI)	(72) Inventor: SINKKONEN, Matti SF-40800 Vaajakoski (FI) (74) Representative: Lauw, Rudolf C. W.,Dipl.-Ing., Dipl.-Wirtschaftsing., et al  Karwinskistrasse 1 D-81247 München D-81247 München (DE)